Apparatus for indicating speed of vessels.



No. 738,458. l PATENTED SEPEs, 190s.

s. J. LAWRENCE. APPARATUS EOE INDICATING SPEED 0E VEssELs.

APPLIOATION FILED FEB. 27. 1902.

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BAEEENTED SEPT. 8, 1.903. S5, J. LAWREM'JI.I

APPARATUS EQR1'INDICATING. SPEED;- fP VESSELS.

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I IILAHHI VI m: Norms PETERS co. Pmzwuj'wo., WASHINGTON. n. c.

- UNITED STATES Y Patented september s, 1903.

PATENT OFFICE.

APPARATUS FOR INDVICATING SPEED OF VESSELS.

VSPE(`.fI]i`I(.fATIO1\l' forming part of Letters Patent No. 738,458, dated September 8, 1903.

Application filed February 27, 1902. Serial No. 96,029. (No model.)

To all when@ it may concern:

Be it known that I, SIDNEY JOHN LAW- RENOE, a subject of His Majesty the King of Great Britain and Ireland, residing at Christchurch, Canterbury, in the Colony of New Zealand, have invented new and useful Improved Apparatus for Indicating the Speed of a Vessel and the Distance Sailed, of which the following is a specification.

According to this invention apparatus for indicating the speed of a vessel and the distance sailed consists of a turbine-motor driven by water which is caused to iiow to the turbine by the forward motion of the ship. The revolution of said turbine actuates indicating mechanism such as is commonly used with taffrail-logs. Motion is also given to a centrifugal governor, whereby the speed of the vessel may be seen at a glance.

In the drawings, Figure 1 is a diagrammatic side view of a vessel, showing a general arrangement of my invention; Fig. 2, a transverse sectional elevation of part of a vessel; Fig. 3, a front elevation ot' the turbine with the cover and gear removed; Fig. 4, an end` elevation of the turbine-wheel; Fig. 5, a vertical central sectional side elevation. Fig. 6 is a front elevation, partly in section, of indicating mechanism. Fig. 7 is a side central sectional elevation of same.

The same iigures of reference indicate the same parts throughout the figures.

The turbine-motor (shown more particularly in Figs. 3 to 5, inclusive,) consists of a wheel, 1 having ordinary turbine-wheel vanes or blades 2 upon its periphery and mounted within a casing 3 upon a spindle 4, which is journaled at one end in a bearing 5 upon the casing and passes througha bearing 6 upon the cover 7. Bearing 6r has a recess which is filled with oil through the screw-plug 6" to make a joint in place of packing.

As shown more particularly in Figs. 1 and 2, a pipe 8, communicating with an inlet-port 9 at the top of the turbine, is led through the bottom of the vessel, where it has an elbow 10, projecting in the direction of the bow of the vessel.

A cock 12 upon pipe 8 is provided for the purpose of adjusting the supply of Water to the turbine. An exhaust-pipe 13 leads from an-exhaustport 14 at the bottom of the turbine-motor through the bottom of the vessel, where it projects slightly and is cut off at right angles.

When starting the motor to work, air may be withdrawn from it by an air-exhaust pump through the valve 15, which is an ordinary ball-valve, or steam may be admitted through a steam-pipe 16, fitted with a cock 16a, and afterward condensed.

Spindle 4 has a spur-wheel 17 fixed upon it, which gears with a spur-pinion 18 upon the end of a short spindle 19, journaled in bearing 2O and having an eye 21 at its upper end which fits into a jaw 22, iixed upon the end of a light rod 23, which'passes vertically up through the decks to the bridge of the vessel and through the tubular pillar or standard 24. (See Figs. 1 and 2.) Upon the top of the pillar is iixed the indicating mechanism now to be described.

A ,screw-threaded portion 25 of rod 23 gears with aworm-wheel 26, upon the axle of which is a pinion 27, gearing with a spur-wheel 28, upon the axle of which is fixed an indicatinghand 29, passing over a small circular dial 30, (a portion of which is shown' in Fig. 6,) one complete revolution of the hand overthe dial indicating that one knot has been traveled. Spur-wheel 28 also gears with the large internal tooth-whee129, upon the axle 30a of which is fixed the indicating-hand 3l, passing over the disk dial 32, a part of which is shown in Fig. 6, said disk dial being designed to indicate the number of knots traveled.

A casing 33 receives the parts and provides support for the axles or arbors of the wheels described.

To the upper end of rod 23 is iiixed the double-jaw bracket 34, each jaw receiving the upper end of one of a pair of lever-arms 35, each of which has a weight-ball 36 at its extremity.

To the levers 35 are pivotally connected the arms 37, the opposite ends of which are pivoted upon a sleeve or collar 38, which slides freely upon the rod 23.

A dial-plate 39 is marked with horizontal divisions representing knots per hour, and an indicating-hand 40, ixed upon the sleeve 38, varies its position upon the dial with the rise and fall ot' the governor-balls as the speed ot' turbine-motor, increases or decreases.

In operation forward motion of the vessel causes water to iiow up through the pipe S and out of the pipe 13, whereby the turbinewheel is revolved and motion given to the parts described..

Almost any indicating mechanism can be substituted for that described,provided it consists of a train of gear-wheels designed to' be actuated by a revolving spindle or by the revolving flexible log-cord usually employed in tairail-logs. y

The speed-indicator may be used independently of the distance-indicator by removing the wheel 26.

The turbine-motor is arranged above water level, so that it may be taken apart for examination without fear of water Iiowi-ng into the vessel.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. The combination in apparatus for the purpose indicated ot a turbine-motor, a pipe communicating with the inlet-port of said motor extending through the hull, and havingv a bend projecting toward the bow of the Vessel, a pipe communicating with the exhaustport of said motor and extending through the hull of the vessel, a bevel-wheel upon the spindle of said motor gearing with a bevelpinion upon a vertical spindle extending up through the deck ofthe vessel and means for actuating indicating-gear by the revolution of said vertical spindle substantially as speci- Iied.

2. The combination in apparatus for the purpose indicated of a turbine-motor, a pipe communicating with the inlet-port of said motor extending through the hull, and having a bend projecting toward the bow of the vessel, a pipe communicating with the exhaustport of said motor and extending through the hull of the vessel, a bevel-Wheel upon the spindle of said motor gearing with a bevel-pinion upon a vertical spindle extending up through the deck of the vessel, a screw-worm upon said vertical spindle gearing with a worm-wheel which has a pinion upon its axle in gear with a wheel which drives an internally-toothed Wheel and which has an indicating-hand upon its axle, an indicating-hand carried upon the axle of the internally-toothed wheel and dials for indicating the distance traveled by the vessel substantially as specified.

The combination in apparatus for the purpose indicated of a turbine-motor, a pipe communicating with the inlet-port of said motor extending through the hull, and having a bend projecting toward the bow of the vessel, a pipe communicating with the exhaust port of said motor and extending through the hull of the vessel, a bevel-wheel upon the spindle of said motor gearing with a bevel-pinion upon a vertical spindle extending up through the deck of the vessel, a screw-worm upon said vertical spindle gearing with a worm-wheel which has a pinion upon its axle in gear with a wheel which drives an internally-toothed wheel and which has an indicating-hand upon its axle, an indicating-hand carried upon the axle of the internally-toothed wheel and dials for indicating the distance traveled by the vessel, a double-jaw bracket upon the end of said vertical spindle, levers pivoted therein, weightballs upon the extremities of the levers, a sleeve or collar sliding upon the vertical spindle, arms connecting said collar with said levers, a dial-plate marked with divisions representing knots per hour, and an indicating-hand fixed upon the sleeve and rising and falling upon said dial according to the speed with which said vertical spindle revolves substantially as specified herein and illustrated.

In Witness whereof I have hereunto set my hand in presence of two witnesses.

SIDNEY JOHN LAWRENCE.

Vitnesses:

E. S. BALDWIN, E. J. ANsTIss. 

